MF Fire Nova 2X Wood Stove – Satin Black Body & Door, EPA Certified, Heats up to 2,500 sq ft

The MF Fire Nova 2X is the flagship of MF Fire's Nova series: a 2.4 cu ft EPA-certified catalytic firebox that swallows 22-inch splits, heats up to 2,500 sq ft, and tested at just 1.38 grams per hour on real cordwood — with MF Fire's AirX timed air control included as standard equipment. This listing is the Satin Black body with the matching Satin Black door.

Who the Nova 2X Is For

This is the whole-home stove. If wood is your primary heat, your floor plan is open, or you simply want the longest burns and the biggest glass MF Fire makes, the Nova 2X is the one. Heating under about 1,500 sq ft, or tight on space? The Nova C is the better fit.

Key Features

• AirX comes standard – MF Fire's timed air control automatically steps the airflow down 35 minutes after you press it, stretching burn times and preserving coals. One button, no app, no fiddling — it ships on every Nova 2X
• EPA 2020 certified at 1.38 g/hr on cordwood – tested to the tougher real-cordwood method (not just lab cribs) at OMNI-Test Laboratories in 2025
• 78% HHV efficiency (84% LHV) – EPA-verified numbers from the certification test, among the figures MF Fire publishes in its own manual
• Up to 17-hour no-match restart – rated to hold enough coals to relight a fresh load up to 17 hours later, without a match
• 2.4 cu ft firebox, 22 in logs – full-length splits, fewer reloads, real overnight-and-then-some burns
• 243 sq in of glass – an 18 in x 13.5 in viewing area that reads more like a fireplace than a stove
• Top or rear 6 in venting – the collar converts, so it suits new Class A chimneys and existing lined masonry alike
• UL 1482 safety listed – independently tested by OMNI-Test Laboratories

Why Choose MF Fire

MF Fire was founded in 2012 by two University of Maryland fire protection engineers and builds its stoves in Baltimore, Maryland. The company's clean-combustion work has won the Wood Stove Decathlon's Low Emissions Prize, the 2014 Wood Stove Design Workshop Grand Prize, and U.S. Department of Energy research funding. The Nova 2X is the current peak of that work — a big stove that burns clean at the EPA's 2020 standard using genuine cordwood testing, then manages its own airflow with AirX.

Specifications

What AirX Actually Does

Most long burns die because the air stays open too long. AirX is a timed air control: press it once at reload, and 35 minutes later — after the load is charring and the catalyst is working — it automatically steps the airflow down. MF Fire credits it with significantly longer burn times and better efficiency, and it ships standard on every Nova 2X. There's no app to babysit and nothing to program; it's a button.

Heating Performance, Honestly

The 2,500 sq ft rating assumes reasonable insulation and an open layout; insulation, ceilings, climate, draft and wood moisture all shift the result. What the 2.4 cu ft catalytic firebox reliably delivers is capacity and duration — 22-inch splits, a certified 1.38 g/hr burn, and the up-to-17-hour no-match restart. Burn seasoned cordwood at 15–20% moisture; the stove was certified on cordwood, and it rewards good fuel.

Nova C vs Nova 2X at a Glance

Square footage, output and restart figures are MF Fire ratings; emissions and efficiency are from the EPA certification tests.

Heating a smaller space? See the Nova C in Satin Black.

Installation

Plan on a 6-inch chimney system — UL 103 HT Class A from a single manufacturer or code-approved lined masonry — running 15 to 33 feet from the stove top, plus a UL 1618 floor pad matched to your base. The clearance table in MF Fire's Nova 2X owner's manual is the authority; the optional Reduced Clearance Kit brings the back wall down to 9 inches with double-wall pipe. Use an NFI-certified installer, and note the Nova 2X is not approved for mobile homes.

Compatible Accessories

• Base options: Nova Series leg kits, the Nova 2X Tower base with built-in wood storage, or the Nova Series Bench
• Fireplace conversion: Nova 2X Insert Surround Kit
• Heat circulation: Room blower fan for freestanding installs
• Finishing touches: cast iron ash lip (adjustable 4–6 in), Reduced Clearance Kit, and a make-up air kit for tightly sealed homes

Warranty & Support

MF Fire backs the Nova 2X with a Limited Lifetime warranty on the firebox and door-frame welds — "lifetime" is defined in the warranty as up to 7 years — with up to 5 years of covered labor on select components and shorter terms on wear parts (AirX and blower components carry 1 year). Paint, gaskets, glass and firebricks are excluded; coverage applies to the original owner at the registered address, so register with MF Fire after installation. OffGrid Horizon is a family-owned, authorized MF Fire dealer — (302) 496-3554, before and after the sale.

Shipping & Delivery

Ships crated by freight carrier with curbside delivery. Inspect the crate before signing, note any damage on the receipt, and call us — we open the manufacturer claim for you.

Frequently Asked Questions

What's the difference between the Nova 2X and the older Nova 2?

Same firebox platform — the 2X is the current EPA-certified model and adds the AirX timed air control as standard equipment, with a 2025 cordwood certification at 1.38 g/hr.

Does the firebox come with legs or a base?

Not by default — but you can add a 3, 6 or 9 inch leg kit right on this page with the Leg Kit selector above, and the price updates automatically. Prefer a different look? The Tower base with wood storage, the 48-inch Bench, and the insert surround are listed separately, and we're happy to match one for you at (302) 496-3554.

Is AirX an app or a smart-home device?

Neither — it's a self-contained timed air control on the stove. Press it at reload; 35 minutes later it steps the air down automatically. No Wi-Fi, no app, nothing to pair.

Is this a catalytic stove, and what does that mean for me?

Yes. The catalytic combustor re-burns smoke at low temperatures, which is what makes clean overnight burns possible. You engage it with a bypass handle once the stove is hot, and it's a maintained part — inspect seasonally, replace eventually.

What wood should I burn?

Seasoned cordwood at 15–20% moisture, per MF Fire. The 2X was EPA-certified burning cordwood, and dry fuel is most of the battle.

What clearances and hearth do I need?

36 inches in front, a UL 1618 floor pad matched to your leg configuration, and the manual's rear/side clearance table for your setup. The Reduced Clearance Kit cuts the back wall to 9 inches with double-wall pipe.

Can I install it in a mobile home?

No. MF Fire does not approve the Nova 2X for mobile home installation.

Does it qualify for the federal wood stove tax credit?

No. The federal 25C biomass stove credit ended for installations after December 31, 2025, so 2026 installs do not qualify — regardless of what older pages elsewhere may still claim.

What maintenance does it need?

Ash into a lidded steel container, glass cleaned cool with a non-ammonia cleaner, gaskets checked seasonally, catalytic combustor inspected, chimney inspected and swept regularly through the heating season.

How do I know it will heat my space?

Call (302) 496-3554 with your square footage, layout and climate and we'll tell you straight — including when the smaller Nova C is the smarter buy.

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